Apparatus for deforming sheet-metal plates.



G. H. HYDE. s FOR DEFORMING sum METAL PLATES.

APPARA'I'U APPLICATION FILED DBO. 8, 1910.

Patented July 16, 1912.

bled when desired.

rniv'r OFFICE.

UNITED STATES r enonen n. axon, or wn'rna'rown, NEW Yonx, Assmnon To run we METAL BOAT comranr, or warnnrown, new roan, A conronurrouor NEW YORK.

' APPARATUS FOR DEFORMING SHEET-METAL PLATES.

' Specification of Letters .Batent. Patented Jul 16, 1912 Application filed December 8, 1910. Serial No. 596,332.

. Another object in the use of convex press-, mg elements is to enable the sheet to be more easily manipulated at the end of each pressing operation in order to bring the portion thereof which requires the greatest amount .60 of deformation at the highest .point of the supporting be A still further object is to enable the pressure and consequent degree of deformation to be varied at will by simply shifting one or the other of the pressing elements laterally, thereby varying the relative positions of their high points and angle of contact of the pressing elements.

Other objects and uses will be brought 7 out in the following description.

In the drawings-Figure 1 is a side elevation of a deforming machine embodying the various features of my invention. Fig. 2 is an enlarged sectional view of the plate supporting bed having a cylindrical convex surface, the presser roll being shown in elevation. Fig. 3 is an end elevation of a portion of the same bed showing the presser roll in section. Figs. 4 and 5 are views similar to 30 Figs. 2 and 3 except that the bed is provided with a spherical convex surface and is shown in section in Fig. 5. Fig. 6 is a sectional view of a modified form of bed having its surface curved transversely of the 35 roller or to its direction of movement, the roller being shown in section. Fig. 7 is a sectional view of a still further modified form of bed showing the roller in elevation, the convex surface of the bed being more or less irregular.

In Fig. 1 I have shown a main supporting frame --1- upon which is mounted a horiiece. zontally movable carriage-2-for receiving The main object, therefore, of my present and supporting an elastic bed -3- having invention is to enable the operator to subject Secured to the different portions of a sheet metal plate to main frame --1'- is an upright bracket different-pressures during the same or repe- *4 having a forwardly projecting extentitions of the same operation of the pressing To all whom it may concern.-

Be it known that I, Gnomes H. HYDE, of Watertown, in the county of Jefferson, in the State of New York, have invented new and useful Improvements in Apparatus for Deforming Sheet-Metal Plates, of which the following, taken in connection with the ac-- companymg drawings, is a full, clear, and exact description.

This invention relates to certain improvefor deforming sheet met-ahplates of the'class set forth in my Patent #926,253 June 29, 1909 and is particularly useful in deforming the sections or plates of sheet metal boats to substantially the same contour which they would assume when assembled, thereby permitting the sections of the boat to be stored or shipped in compact space and easily and quickly assem In my Patent #926,253 referred to, the sheet metal was deformed by pressure be. tween a flat elastic bed plate and a suitable presser roll, thereby producing a uniform ressure and consequent uniform curvature or deformation of the sheet metal as the carriage is moved back and forth, any variation from such pressure or contour being effected by vertical adjustment of the roller. I have discovered, however, that by the use of a I convex (either spherical or cylindrical) sup-- porting bed for the plate and simply shifting such bed or roller laterally, I am enabled to obtain a wider range or variation in the contour of the sheet metal plates without vertical adjustment of either the roller or bed, thereby producing the desired deformation more expeditiously than with a flat bed sion or arm --oupon which is mounted a elements and to thereby materially increase transversely movable cross hea the'output of the machine for a given period Upon this cross head is mounted a vertically of time. adjustable roller support 7- carrying a A. further object is to enable the pressure presser roll -8-, the latter having a transupon the plate to be gradually increase versely convexed presser face for coaction from one side toward a given point and then with the convex bed 5- in deforming a gradually reduced from such point toward sheet metal plate'as -a,-. another side of the plate in a single oper- The cross head -6- may be adjusted ation, thereby producing a maximum curvatransversely of the carriage -2- to correture or deformation of the plate at the point spondingly change the position of the roller 6 of greatest pressure.

-8- relatively to the bed --3--, or the bed the plate would be reduced and owing to the fact that the surface of the roll is convexed transversely the angle of contact between the roller and bed plate will also be changed, thereby affording a wider range of deforma- 70 tion t an would be possible between the same roller and a coacting flat supporting .may be adjusted transversely or longitudinally of the carriage, the object of such adjustment being to change 'the relative positions or angles of the coacting presser adjustment of the roller. This roller is norma lly positioned so that its lower contact face is in a plane below that of the high point of the supporting bed for the sheet metal so that when the bed is moved back and forth, the plate will be subjected to gradually increasing pressure toward the high point and l to gradually ecreasing pressure from the rubber coverings shown in Figs. -lto high point of the bed, the maximum pres -5- inclusive may be omitted and the so sure andconsequently the greatest degree of sheet metal plates supported directly upon curvature being at the high point.

The bed -,3- preferably consists of a plano-convex backing 9 of wood or. 0 equivalent: fibrous material which is somewhat yielding but is preferably provided Tn Figs. 6 and 7 T have shown bed pieces and -2l of wood or similar fibrous Figs. 1, 2 and 3 except that the upper face of 5;; the bed p1ece -20-- is convexed transversely of the direction of movement of the bed.

approximately to the convex face of the bed produce a maximum pressu e on the plate at the high point of the bed piece and to enable this pressure to be varied y lateral shifting of the roller or bed piece. In this latter modification different portions of the curved faces of the bed piece and roller are of different radii to allow a wider range of deformation of the plates by simply shifting the bed piece or roller laterally, that is, by the use of a bed piece having a convex surface 30 As shown in Figs. 2 and 3, the upper surface of .the supporting bed *3 or elastic covering 1 is convexed in the direction of movement of the carriage 2- and adjacent face of the roller -S- so as to afford may be transversely of the. direction of I 40 movement .of the carriage.

tions, the plate will be curved or deformed In Figs. 5t and 5 I have shown a backing cally convexed upper face upon which is 45 mounted a similarly shaped concavo-convex covering -10' of soft rubber, rubber canvas or similar elastic'material capable of yielding easily under pressure. It therefore follows that the upper surface of the sheet metal supporting bed -lO- is convexed in ,all directions both transversely and l0ngitudinally so that by shifting one of the pressing elements laterally, the degree of pressure and angle of contact may be varied 55 at will according to the deformation which may be required. For example, assuming When it is desired to expand or stretch llO -cal bed -l0- igs. 2 and 3 and slibjected such edge may be again subjected to pressure between the bed -21- and roller -22-, shown in Fig. -7- for additionally while in practically all other operations, the

would be produced at such high point but by shifting the bed or roller laterally so as to'bring the point of contact outside of the high point of the bed it is evident that the pressure upon a corresponding curvature of cause the pressure decreases much more rapas shown and described nor to the manufacidly out from the point of greatest pressure. t-ure of the particular articles which this up It is to be understood, however, that the aratus is capable of producing.

What I claim An apparatus for deforming sheet metal plates comprising a non-rotatable elastic supporting bed for the plates, and a presscr roll coacting therewith and provided with a transversely curved face, the surface of said bed being curved transversely of the axis of the roll, and means for moving one o the elements in the direction of length of the surface of the bed gradually varying the (legree of pressure on the plate as the points of pressure approach or recede from the high points in the curvature of the bed.

In witness whereof I have hereunto set my 'hand on this second day of December 1910.

broadly in'the use of a is: supporting bed having a convex surface of regular or irregular curvature and thatwhile the surface of the roller is preferably convex in cross section it may be conical as shown in Fig. 7, the object being to enable the plates to be subjected to a maximum pressure "at the high point or points of the bed and to gradually reduce laterally from such high points so as to produce the desired stretching or deformation at any part of the and although I have shown specific forms of beds and rollers adapted for deforming the plates of sheet metal boats, it is evident that the same apparatus may be used in themanufactur'e of plates for any other purpose, such, for example, as fenders and GEORGE H. HYDE. other sheet metal parts of automobiles and Witnesses: therefore I do not limit myself to the exact ORLANDO J. Foo'r,

construction and arrangement of the parts SUSIE S. HANNAHs. 

